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A thunderstorm in the area
A couple of thunderstorms
Colder with thunderstorms
of sunlight, then sets at
of moolight, then sets at
Dallas will see continued periods of heat and dry weather with temperatures expected to approach 100 F on Monday. more >
Dec 20, 2012; 5:00 AM ET
The 540 line is often used by meteorologists to determine the chances of rain vs. snow.